Self-dumping mine car



Aprilzi, 1925.

m Vl R. G. NICHOLS SELF DUMPING MINE CAR yFiled Nov. 5o. 1921 R. G. NICHOLS SELF DUMPING MINE CAR Apr-ii 21, 1925.

Filed Nov. 50, 1921 z Sheets-Sheet 2 n i. q

v I l i I I.' I,

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Patented Apr.. 21,1925.

RALPH G. NICHOLS, 0F RICHMOND HLL, NEW YORK, AS'SIGNOR 'lO AMERICAN CAR AND FOUNDRY COMPANY, OF NEW YORK, N. Y., A CORPORATION 0F NEW JERSEY.

SELF-numerate MINE can,

application ined November 3o, 1921. semi No. 518,891.

To @ZZ whom t may concern.:

Be it known that I, RALPH G. NICHOLS, residing at Richmond Hill, Queens County, New York, and being a citizen of the United States, have invented certain new and useful improvements in a Self-Dumping Mine Car, of which the following is a full, clear, and exact descriptiom'such as will enable others skilled in the art to which it appertains to make andto .use the same, reference being had to the accompanying drawings, which illustrate the preferred forni of the invention, though it is to be understood that the invention is not limited to the exact details of construction shown and described, as it is obvious that various modifications thereof within the scope of the claims will occur to persons skilled in the art.

-ln said drawings:

Fig. 1 is a side elevation of my improved dumping car, the means for automatically .opening the doors being shown; t

Fig. 2 is a partialvplan view of my-improved dumping car, some parts being` broken away in order to show other parts more clearly;

Fig. 8 is an end elevation, part of the bumper and end sill being broken away in order'to show the door locking mechanism;

Fig. 4 is a central vertical section of my improved car with the means forautomatically closing the doors shown in side elevation' Fig. 5 is a section showing the manner of controlling the locking means of one door by anotherdoor; and

Fig. 6 is a view partly in section, showing the manner of mounting the doors.

It is the object of my invention to p rovide an improved automatically operating dumping car having a plurality oi' dumping 'doors designed to dump their loads successively upon the operation of the locking means controlling one of the doors. It is also the object of my invention tovso de sign the 4dumping doors that they will be locked when closed in the reverse order to dumping and will be kept locked in closed position upon the closing of the door first released and it is also an object of my invention to provide suitable means for auto-A matically opening and closing the doors.

l/Vhile l have shown my invention ap' plied to a car of the type known as a mine car it is to be understood that my .inven tion may be applied to cars of other types or designed for other purposes. In the embodiment shown, the car comprises a frame composed of side members 1 and end members 2 carried upon axles 3 to which the wheels 4 are attached and supporting the sides 5, ends 6 and bumpers 7 which may be of any desired construction. The dumping doors 8, 9 and 10, which may, as shown, constitute almost the entire floor of the car and be of any desired number comprise metal plates bent to a concave shape. At

bolts 15. Along thesides or" the doors are secured theangles 16, bent to conform to the sha-pe ofthe door plates and which serve to reeni'orce the door plates and to prevent Vdischarge of the contents of the oar where, Vas shown in F ig. 1, the plates dip below the side members 1.

To the free edge of the door 8 there ard secured a plurality of projecting lugs 17 adapted, when the door is in closed position, to be engaged by locking mechanisms consisting of lever arms 18 having the arms 19 projecting at right angles thereto and provided with shoulders 20 to engage the lugs 17. The lever arms 18 are pivotally supported on pins 21 supported in openings in the end 6 and a cover plate 22 secured to4 the end 6. Straps 28 secured to the end 6 serve as guides for the arms 18 which project beyond the sides of the car so as to engage the operating cams 24 mounted at the side of the track. To secure each of the other doors in close-d position there is provided a locking plate or member 25 that serves as a part of the car ioor and the' free end of the door. Each member 25 is pivotally supported by straps 26 which form loops about the axle 3. In the car shown in the drawings, the axles 8 are ad` jacent the bearing studs 18 and the locking members 25 are positioned so as to be titi riti

lhas a portion adapted to be engaged beneath llt) ends of the door; plates being 'so designed that each locking member v25 is held in lock- 'door that operates it .is inv closed positionj.:

'doo1's.

and the locking member is released when the door-isV in open position. IVliere theV arrangement of `the doors is such that the axles are not adjacent the points of support for the doors, the locking members 25 Will be supper-ted on cross members carried by the side members 1. To prevent the load a from interfering with the operation of the locking. members, protection plates or ergles 27 are mounted .on the Aside members 1 directly over the supports for the locking members 25.-

4To return the doors to closed position -a cam member 28, mounted betweenthe rails, is adapted to engage the doors and return eachl door to the closed position before the following door isoperated sufliciently to move lthe locking member 25 from-the release position'.

In service, the .car will be in' motion throughout ythe operation of opening and closing the vdoors and Will be run With the vlevers 18 at the rear ot' thefcar so. that when the levers`18 engage the cams 24, erected at the dumping opening'in the -t-raek, all the doors of the earA will4 be over the dumping opening. Operation of the levers 18 by the cams 24 Will Withdraw the lshoulders 20 on 'the arms 19 from the lugsI17 permittilig'the door 8 to drop. As the door 8. drops,the cam-shaped end of the door plate.Willbe'disengaged from'the locking, member 2.5 it engages permitting 'the Weight on door 9 to force back the locking member 25 and release the door. This will disengage the cam-shaped 'end vof the door. 9 from the locking, members 25 i-n engagement with door 10 which Will then be released thus giving a successive operation of the doors that will extend throughout the length of the car.

In closing. the doors, the doors are operated in the reverse order, door 10 at the front of the car engaging the 'cam 28 and being raised to and held in closed position. vAs the door -9 raised the cam end of the door plate Will engage thelocking member 25 and force it to engaging position beneath the'door 10, thus locking the door 10 in closed position as the door 9` isheld in closed position by the cam' 28 until it is looked i, in closed position by the raising ofthe door envavinw 1. In a dumping car, a plurality of dumping doors and a locking means tor one of said doors 'mounted independently of said doors and controlled by the other*of'fsaidV 2. In a dumping car, aplural'ity of dump- :ing doors and a locking means between said doors supported independently'of said doors and adapted to -be engaged With one of said doors upontthe operation of another ofsaid'doors. 1

A dumping,- car .comp-rising 'a'.frame, axles supporting saidvframe, dumping doors pivotally mounted on said frame beneath the axles and locking means for said doors loosely mounted on said axles and. con'- trolled by movement of the doors.

LLA. dumping car comprising a frame, dumping ,doors carried by said frame and locking means for some of said doors mounted independently of all of said doors for operation'by others of said doors.

5. In a dumping car, a plurality of dumping doors and a lock vfor one .door inde'- pendent from the doors and p'ivotally mounted over the support of a seconddoor and controlledl thereby for movement into' and outA ofposition for locking engagement 'with the irstdoor.

6. In a dumping car, a. frame, axles snpporting said frame, bearing brackets. secured to said frame, dumping doors -pivotally mountedin said bearing brackets and locking means for some of said doors pivotally mounted on said axles and controlled by others of said doors.

7. In a dumping car., a pivotally mounted dumping door, a pivotally mounted locking means engaging the free edge of the door and a second pivotally mounted dumpdoor having a curved portion adjacent its support and adapted to engage the locking means and force' it into engagement with said first mentioned dumping door.

.8. In a dumping car, a pivotallymounted dumping door having a liat free 'edge,a `pivotally mounted locking means having an outwardly bent portionadaptcd .to-cooperate with the free edge `of said door and a second pivotally mounted dumping door having a. curved .portion adjacent its support adapted to hold said locking means in g g b position when said second door is in closed positi'on.

9. In a dumping car, a' dumping door having a flat free edge, a'pivotally mounted locking means having a surfaceada'pted to'engage the tree edge `of said door and a4 second dumping door having a curved portion'adjaeent its support adapted to operate said locking means.

10. In a dumping car,.a dumping door, a pivotally mounted locking means having a fiat surface adapted to engage the free edge of said door and a second dumping door having a portion curved about its axis,

of support and engaging said locking means to hold said locking';means in engagement with said first mentioned door.

11. In a dumping Carra pivotally mounted dumping door, a' pivota-lly mounted looking means adapted to support the free edge of said door and a second pivotally mounted dumping door having a curved portion adapted to hold said looking means in engagement with said first mentioned door.

12. In a. dumping oar, a plurality of dumping doors, a locking means suspended,

between said doors andvmeans on one 'of said doors vengaging,said lockingA means to forcer said looking` means into engagement with the other of said doors.

13. In a dumping car, a plurality of dumping doors, a looking means suspended between sald doors and a curved surface on. 20

RALPH G. NICHOLS. lWitnesses: .Y

A. J. KENNEDY,

R. W. 'SM1TH. 

